1 files changed, 316 insertions, 0 deletions
diff --git a/caddyconfig/caddyfile/dispenser_test.go b/caddyconfig/caddyfile/dispenser_test.go
new file mode 100755
index 0000000..9860bed
--- /dev/null
+++ b/caddyconfig/caddyfile/dispenser_test.go
@@ -0,0 +1,316 @@
+// Copyright 2015 Matthew Holt and The Caddy Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package caddyfile
+
+import (
+	"io"
+	"log"
+	"reflect"
+	"strings"
+	"testing"
+)
+
+func TestDispenser_Val_Next(t *testing.T) {
+	input := `host:port
+			  dir1 arg1
+			  dir2 arg2 arg3
+			  dir3`
+	d := newTestDispenser(input)
+
+	if val := d.Val(); val != "" {
+		t.Fatalf("Val(): Should return empty string when no token loaded; got '%s'", val)
+	}
+
+	assertNext := func(shouldLoad bool, expectedCursor int, expectedVal string) {
+		if loaded := d.Next(); loaded != shouldLoad {
+			t.Errorf("Next(): Expected %v but got %v instead (val '%s')", shouldLoad, loaded, d.Val())
+		}
+		if d.cursor != expectedCursor {
+			t.Errorf("Expected cursor to be %d, but was %d", expectedCursor, d.cursor)
+		}
+		if d.nesting != 0 {
+			t.Errorf("Nesting should be 0, was %d instead", d.nesting)
+		}
+		if val := d.Val(); val != expectedVal {
+			t.Errorf("Val(): Expected '%s' but got '%s'", expectedVal, val)
+		}
+	}
+
+	assertNext(true, 0, "host:port")
+	assertNext(true, 1, "dir1")
+	assertNext(true, 2, "arg1")
+	assertNext(true, 3, "dir2")
+	assertNext(true, 4, "arg2")
+	assertNext(true, 5, "arg3")
+	assertNext(true, 6, "dir3")
+	// Note: This next test simply asserts existing behavior.
+	// If desired, we may wish to empty the token value after
+	// reading past the EOF. Open an issue if you want this change.
+	assertNext(false, 6, "dir3")
+}
+
+func TestDispenser_NextArg(t *testing.T) {
+	input := `dir1 arg1
+			  dir2 arg2 arg3
+			  dir3`
+	d := newTestDispenser(input)
+
+	assertNext := func(shouldLoad bool, expectedVal string, expectedCursor int) {
+		if d.Next() != shouldLoad {
+			t.Errorf("Next(): Should load token but got false instead (val: '%s')", d.Val())
+		}
+		if d.cursor != expectedCursor {
+			t.Errorf("Next(): Expected cursor to be at %d, but it was %d", expectedCursor, d.cursor)
+		}
+		if val := d.Val(); val != expectedVal {
+			t.Errorf("Val(): Expected '%s' but got '%s'", expectedVal, val)
+		}
+	}
+
+	assertNextArg := func(expectedVal string, loadAnother bool, expectedCursor int) {
+		if !d.NextArg() {
+			t.Error("NextArg(): Should load next argument but got false instead")
+		}
+		if d.cursor != expectedCursor {
+			t.Errorf("NextArg(): Expected cursor to be at %d, but it was %d", expectedCursor, d.cursor)
+		}
+		if val := d.Val(); val != expectedVal {
+			t.Errorf("Val(): Expected '%s' but got '%s'", expectedVal, val)
+		}
+		if !loadAnother {
+			if d.NextArg() {
+				t.Fatalf("NextArg(): Should NOT load another argument, but got true instead (val: '%s')", d.Val())
+			}
+			if d.cursor != expectedCursor {
+				t.Errorf("NextArg(): Expected cursor to remain at %d, but it was %d", expectedCursor, d.cursor)
+			}
+		}
+	}
+
+	assertNext(true, "dir1", 0)
+	assertNextArg("arg1", false, 1)
+	assertNext(true, "dir2", 2)
+	assertNextArg("arg2", true, 3)
+	assertNextArg("arg3", false, 4)
+	assertNext(true, "dir3", 5)
+	assertNext(false, "dir3", 5)
+}
+
+func TestDispenser_NextLine(t *testing.T) {
+	input := `host:port
+			  dir1 arg1
+			  dir2 arg2 arg3`
+	d := newTestDispenser(input)
+
+	assertNextLine := func(shouldLoad bool, expectedVal string, expectedCursor int) {
+		if d.NextLine() != shouldLoad {
+			t.Errorf("NextLine(): Should load token but got false instead (val: '%s')", d.Val())
+		}
+		if d.cursor != expectedCursor {
+			t.Errorf("NextLine(): Expected cursor to be %d, instead was %d", expectedCursor, d.cursor)
+		}
+		if val := d.Val(); val != expectedVal {
+			t.Errorf("Val(): Expected '%s' but got '%s'", expectedVal, val)
+		}
+	}
+
+	assertNextLine(true, "host:port", 0)
+	assertNextLine(true, "dir1", 1)
+	assertNextLine(false, "dir1", 1)
+	d.Next() // arg1
+	assertNextLine(true, "dir2", 3)
+	assertNextLine(false, "dir2", 3)
+	d.Next() // arg2
+	assertNextLine(false, "arg2", 4)
+	d.Next() // arg3
+	assertNextLine(false, "arg3", 5)
+}
+
+func TestDispenser_NextBlock(t *testing.T) {
+	input := `foobar1 {
+			  	sub1 arg1
+			  	sub2
+			  }
+			  foobar2 {
+			  }`
+	d := newTestDispenser(input)
+
+	assertNextBlock := func(shouldLoad bool, expectedCursor, expectedNesting int) {
+		if loaded := d.NextBlock(); loaded != shouldLoad {
+			t.Errorf("NextBlock(): Should return %v but got %v", shouldLoad, loaded)
+		}
+		if d.cursor != expectedCursor {
+			t.Errorf("NextBlock(): Expected cursor to be %d, was %d", expectedCursor, d.cursor)
+		}
+		if d.nesting != expectedNesting {
+			t.Errorf("NextBlock(): Nesting should be %d, not %d", expectedNesting, d.nesting)
+		}
+	}
+
+	assertNextBlock(false, -1, 0)
+	d.Next() // foobar1
+	assertNextBlock(true, 2, 1)
+	assertNextBlock(true, 3, 1)
+	assertNextBlock(true, 4, 1)
+	assertNextBlock(false, 5, 0)
+	d.Next()                     // foobar2
+	assertNextBlock(false, 8, 0) // empty block is as if it didn't exist
+}
+
+func TestDispenser_Args(t *testing.T) {
+	var s1, s2, s3 string
+	input := `dir1 arg1 arg2 arg3
+			  dir2 arg4 arg5
+			  dir3 arg6 arg7
+			  dir4`
+	d := newTestDispenser(input)
+
+	d.Next() // dir1
+
+	// As many strings as arguments
+	if all := d.Args(&s1, &s2, &s3); !all {
+		t.Error("Args(): Expected true, got false")
+	}
+	if s1 != "arg1" {
+		t.Errorf("Args(): Expected s1 to be 'arg1', got '%s'", s1)
+	}
+	if s2 != "arg2" {
+		t.Errorf("Args(): Expected s2 to be 'arg2', got '%s'", s2)
+	}
+	if s3 != "arg3" {
+		t.Errorf("Args(): Expected s3 to be 'arg3', got '%s'", s3)
+	}
+
+	d.Next() // dir2
+
+	// More strings than arguments
+	if all := d.Args(&s1, &s2, &s3); all {
+		t.Error("Args(): Expected false, got true")
+	}
+	if s1 != "arg4" {
+		t.Errorf("Args(): Expected s1 to be 'arg4', got '%s'", s1)
+	}
+	if s2 != "arg5" {
+		t.Errorf("Args(): Expected s2 to be 'arg5', got '%s'", s2)
+	}
+	if s3 != "arg3" {
+		t.Errorf("Args(): Expected s3 to be unchanged ('arg3'), instead got '%s'", s3)
+	}
+
+	// (quick cursor check just for kicks and giggles)
+	if d.cursor != 6 {
+		t.Errorf("Cursor should be 6, but is %d", d.cursor)
+	}
+
+	d.Next() // dir3
+
+	// More arguments than strings
+	if all := d.Args(&s1); !all {
+		t.Error("Args(): Expected true, got false")
+	}
+	if s1 != "arg6" {
+		t.Errorf("Args(): Expected s1 to be 'arg6', got '%s'", s1)
+	}
+
+	d.Next() // dir4
+
+	// No arguments or strings
+	if all := d.Args(); !all {
+		t.Error("Args(): Expected true, got false")
+	}
+
+	// No arguments but at least one string
+	if all := d.Args(&s1); all {
+		t.Error("Args(): Expected false, got true")
+	}
+}
+
+func TestDispenser_RemainingArgs(t *testing.T) {
+	input := `dir1 arg1 arg2 arg3
+			  dir2 arg4 arg5
+			  dir3 arg6 { arg7
+			  dir4`
+	d := newTestDispenser(input)
+
+	d.Next() // dir1
+
+	args := d.RemainingArgs()
+	if expected := []string{"arg1", "arg2", "arg3"}; !reflect.DeepEqual(args, expected) {
+		t.Errorf("RemainingArgs(): Expected %v, got %v", expected, args)
+	}
+
+	d.Next() // dir2
+
+	args = d.RemainingArgs()
+	if expected := []string{"arg4", "arg5"}; !reflect.DeepEqual(args, expected) {
+		t.Errorf("RemainingArgs(): Expected %v, got %v", expected, args)
+	}
+
+	d.Next() // dir3
+
+	args = d.RemainingArgs()
+	if expected := []string{"arg6"}; !reflect.DeepEqual(args, expected) {
+		t.Errorf("RemainingArgs(): Expected %v, got %v", expected, args)
+	}
+
+	d.Next() // {
+	d.Next() // arg7
+	d.Next() // dir4
+
+	args = d.RemainingArgs()
+	if len(args) != 0 {
+		t.Errorf("RemainingArgs(): Expected %v, got %v", []string{}, args)
+	}
+}
+
+func TestDispenser_ArgErr_Err(t *testing.T) {
+	input := `dir1 {
+			  }
+			  dir2 arg1 arg2`
+	d := newTestDispenser(input)
+
+	d.cursor = 1 // {
+
+	if err := d.ArgErr(); err == nil || !strings.Contains(err.Error(), "{") {
+		t.Errorf("ArgErr(): Expected an error message with { in it, but got '%v'", err)
+	}
+
+	d.cursor = 5 // arg2
+
+	if err := d.ArgErr(); err == nil || !strings.Contains(err.Error(), "arg2") {
+		t.Errorf("ArgErr(): Expected an error message with 'arg2' in it; got '%v'", err)
+	}
+
+	err := d.Err("foobar")
+	if err == nil {
+		t.Fatalf("Err(): Expected an error, got nil")
+	}
+
+	if !strings.Contains(err.Error(), "Testfile:3") {
+		t.Errorf("Expected error message with filename:line in it; got '%v'", err)
+	}
+
+	if !strings.Contains(err.Error(), "foobar") {
+		t.Errorf("Expected error message with custom message in it ('foobar'); got '%v'", err)
+	}
+}
+
+func newTestDispenser(input string) *Dispenser {
+	tokens, err := allTokens(strings.NewReader(input))
+	if err != nil && err != io.EOF {
+		log.Fatalf("getting all tokens from input: %v", err)
+	}
+	return NewDispenser("Testfile", tokens)
+}